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The Advantages of Pulse Tools Over Impact Wrenches



What is an impact wrench? A wrench that uses a discontinuous drive clutch system and compressed air to achieve torque. Impact wrenches are commonly used tool in the world.  The wrench is often used to tighten lug nuts on cars for tire changes.

Impact wrenches are destructive by nature with its "hammering" design. An impact wrench can easily damage parts and the threads of a fastener due to the lack of proper torque control. The wrench is not designed for toque control. The tool tends to under and over tighten the fastening application.

The initial purchase of an impact wrench is inexpensive. Yet, the wrench is not ergonomically friendly to an operator and an impact wrench requires a high maintenance budget. The wrench typically needs service multiple times each year. For fastening applications, a pulse tool will increase productivity, provide excellent ergonomics, reliability and quality. 


Pulse Tool

A pulse tool has the speed of an impact wrench with nearly the repeatability of a clutch based shut-off torque tool. Containing precision-machined parts the pulse unit is a sealed chamber that is filled with a formulated hydraulic fluid. Pulse blades with a custom designed precision roller push the fluid inside the rotating chamber generating hydraulic pressure that produces torque. Air power is the power source that spins the anvil and resistance against the fastener causes the pulse unit to activate. 

Key Reasons for Selecting a Safe Ergonomic Pulse Tool

  • Durability
  • Power & speed
  • Low noise decibels
  • Minimal vibration
  • Low torque reaction

Productivity of Pulse Tools

Pulse tools increase productivity and enhance product quality through precision torque control and user comfort. A lightweight pulse tool with more torque capability is an ideal tool for an operator. A pulse tool with a good power-to-weight ratio will enhance the cycle time for the operator with a high-speed rundown. The Flex Power pulse tools, by Mountz Inc., feature a double chamber motor that allows the tool to quickly reach the required torque and increase productivity. The roller inside the pulse unit reduces friction, which increases power and allows the "pulse fluid" to last longer.


Ergonomics of Pulse Tools

The fluid inside the pulse tool acts as a shock absorber providing a powerful reactionless and vibration free nutrunner that is low in noise and highly ergonomic. A pulse tool is crafted for a quick rundown time, which reduces the operator exposure. Mountz FlexPower pulse tools are ergonomically safer than harmful hammering and vibration of impact wrenches.


Durability of Pulse Tools

Due to the design of a pulse tool, there is no mechanical clutch or the conventional metal-to-metal hammering mechanism like an impact wrench that causes a short tool life and higher maintenance costs. Pulse tools are designed for durability and a long tool life.

Controlling torque is essential for companies to ensure their product's quality, safety and reliability isn't compromised. The failure of a three-cent fastener that isn't properly tightened can lead to catastrophic or latent failures. Fasteners that are insufficiently torqued can vibrate loose and excessive torque can strip threaded fasteners. Using a quality pulse tool has become increasingly important for many companies to ensure that proper torque is being applied and maintains gauge requirements associated with the ISO 9001 Quality Standard.


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